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xfs: Use WARN_ON_ONCE for bailout mount-operation 

If the CONFIG_BUG is enabled, BUG is executed and then system is crashed.
However, the bailout for mount is no longer proceeding.

Using WARN_ON_ONCE rather than BUG can prevent this situation.

Signed-off-by: Austin Kim <austindh.kim@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Austin Kim 2019-09-05 18:08:50 -07:00 committed by Darrick J. Wong
parent bc56ad8c74
commit eb2e99943c
1 changed files with 1 additions and 1 deletions
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2
fs/xfs/xfs_mount.c
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@ -214,7 +214,7 @@ xfs_initialize_perag(
spin_lock(&mp->m_perag_lock);
if (radix_tree_insert(&mp->m_perag_tree, index, pag)) {
BUG();
WARN_ON_ONCE(1);
spin_unlock(&mp->m_perag_lock);
radix_tree_preload_end();
error = -EEXIST;